# \[APP\] Shelly - Smart solutions for every home and office

**URL:** <https://community.homey.app/t/app-shelly-smart-solutions-for-every-home-and-office/765>\
**Category:** Apps\
**Tags:** app, official, homey, homey-pro, homey-cloud\
**Created:** [August 28, 2018, 8:54pm UTC](https://community.homey.app/t/app-shelly-smart-solutions-for-every-home-and-office/765 "2018-08-28T20:54:43Z")\
**Posts on this page:** 1\
**Showing post:** 157

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**Author:** ![mazpo](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/mazpo/32/3680_2.png) [@mazpo](https://community.homey.app/u/mazpo)\
**Post date:** [April 1, 2019, 6:48am UTC](https://community.homey.app/t/app-shelly-smart-solutions-for-every-home-and-office/765/157 "2019-04-01T06:48:39Z")

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hello,

my homey adventure started last saturday. so far setup went fine, now i want to buy some shelly stuff and maybe someone can answer my querstions?

1. does any shelly have an dry contact output?
2. is there any functional differrence between shelly 1 and shelly 1.5? both are supported by the app, right?
3. as far as i unerstood i can use one shelly 2.5 instead of two shelly 1, right? But hey what will be the advantage of choosing one shelly 2.5 instead of two shelly 1?

thanx

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